And most or all compacts give you the widest angle equivalent in the specs - they'll usually tell you 24mm or 36mm...then have the optical zoom as '5x' or '12x'. So with the compact, just take that wide number, and multiply by the 'x' to get the maximum telephoto in 35mm equivalent.

It's one of those things I always tried to explain to friends with compact ultrazooms who didn't know better. They'd have a 12x camera, and were interested in picking up a 15x camera, because it could reach farther. When I'd tell them it couldn't, they looked at me like I had 2 heads. But their 12x camera was 36mm wide, while the 15x they were considering was 24mm wide. They didn't get the concept - they just saw 'more x' and assumed longer reach.

Though I take it you're joking...I figured I'd add a deeper explanation for some who might not know all this yet:
Those are from ultrazoom P&S cameras - they always give the 35mm equivalent when quoting wide end. Their actual crop is something like 6x - since they only use tiny 1/2.5 sensors (checking out the lens on the front of my old H5 ultrazoom, the actual focals of the lens itself were 6-72mm, which with the 6x crop factor were the 35mm equivalent of 36mm to 432mm. The newer superzooms added more wide end range, with 4mm lenses (24mm after crop factor), and upped the zoom multiplier to 15x...but at the long end they still maxed out at 360mm equivalent (24 x 15). So despite the big 'ol 15x, the zoom range of the newer 15x camera was actually quite a bit shorter than the old 12x camera.

Of course, Phil already knew that - but some might not...I certainly still routinely hear "how much zoom is that?" from people when I'm using a DSLR with a long lens, and if I answer in mm, they look at me funny - they're waiting for how much 'x' it is!